注意穿着打扮是必要的。而拥有生活目标却并非如此。
There are two possible outcomes: if the result confirms the hypothesis, then you've made a measurement. If the result is contrary to the hypothesis, then you've made a discovery.
可持续性不是一种选择;它是水产养殖唯一的前进道路。
不要想着开始,直接开始。